make some of the SfxStringItem subclasses hashable

Change-Id: I7ad748b67266926f1e4e67e843a90b5ac3fe58b5
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/170152
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

2 files changed, 10 insertions, 0 deletions

diff --git a/include/svl/custritm.hxx b/include/svl/custritm.hxx
index 118fd0963f15..309c0ebfe48a 100644
--- a/include/svl/custritm.hxx
+++ b/include/svl/custritm.hxx
@@ -39,6 +39,8 @@ public:
         SfxPoolItem(which, eItemType), m_aValue(std::move(aTheValue))
     {}
 
+    // not all of the subclasses of this are hashable, so we only define the shared hashCode function here
+    virtual size_t hashCode() const override;
     virtual bool operator ==(const SfxPoolItem & rItem) const override;
 
     virtual bool GetPresentation(SfxItemPresentation,
diff --git a/include/svx/postattr.hxx b/include/svx/postattr.hxx
index af980a3e5b9e..22ede7dffc92 100644
--- a/include/svx/postattr.hxx
+++ b/include/svx/postattr.hxx
@@ -39,6 +39,8 @@ public:
                                   OUString &rText, const IntlWrapper& ) const override;
 
     virtual SvxPostItAuthorItem* Clone( SfxItemPool *pPool = nullptr ) const override;
+
+    virtual bool isHashable() const override; // hashCode is defined in CntUnencodedStringItem
 };
 
 
@@ -59,6 +61,8 @@ public:
                                   OUString &rText, const IntlWrapper& ) const override;
 
     virtual SvxPostItDateItem* Clone( SfxItemPool *pPool = nullptr ) const override;
+
+    virtual bool isHashable() const override; // hashCode is defined in CntUnencodedStringItem
 };
 
 /** The text of a note
@@ -79,6 +83,8 @@ public:
                                   OUString &rText, const IntlWrapper& ) const override;
 
     virtual SvxPostItTextItem* Clone( SfxItemPool *pPool = nullptr ) const override;
+
+    virtual bool isHashable() const override; // hashCode is defined in CntUnencodedStringItem
 };
 
 
@@ -93,6 +99,8 @@ public:
     SvxPostItIdItem( TypedWhichId<SvxPostItIdItem>  nWhich );
 
     virtual SvxPostItIdItem* Clone( SfxItemPool *pPool = nullptr ) const override;
+
+    virtual bool isHashable() const override; // hashCode is defined in CntUnencodedStringItem
 };
 
 #endif